Box-fastener.



PATENTED SEPT. 17, 1907.

E. F. HULBERT.

BOX FASTENER.

APPLICATION FILED MAY 9. 1907.

. 1 91 mecca:

UNITED STATES PATENT OFFICE.

EDWIN F. I-IULBERT, OF KENOSI-IA, WISCONSIN, ASSIGNOR TO NATIONAL OYSTER CARRIER 00., OF KENOSHA, WISCONSIN.

B OX-FASTE NER.

Specification of Letters Patent.

To all whom it may concern:

Be it known that I, EDWIN F. IIULBERT, a citizen of the United States, residing at Kenosha, in the county of Kenosha and State of Wisconsin, have invented certain new and useful Improvements in Box-Fasteners,

of which the following is a speeificat i011.

It is desirable in certain types of fasteners to construct the same so as to draw together the parts to be secured, thereby admitting of pressing the cover of a box, chest or the like close against the body to insure the formation of a tight joint.

The present invention relates to a fastener of the character aforesaid and has for its object to devise simple, compact and effective means admitting of attaining the desired result.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction and the means for effecting the result, reference is to be had to the following description and 20 accompanying drawings.

While the invention may be adapted to different forms and conditions by changes in the structure and minor details without departing from the spirit or essential features thereof, still the preferred embodiment is shown in the accompanying drawings, in which:

Figure 1 is a front view of a fastener embodying the invention showing the same applied to a box. Fig. 2'

is a vertical section on the line a:.r of Fig. 1 showing the cam lever in full lines. Fig. 3 is a detail perspective view of the cam lever. Fig. 4 is a detail view of the plate to which the cam lever is pivoted.

Fig. 5 is a horizontal section on the line yy of Fig.

1, showing the cam lever secured by a wire.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The fastener comprises essentially complemental parts, a cam lever and a hasp, the latter having a keyhole slot 1 to admit of the cam lever passing therethrough. The hasp 2 is hinged to a plate 3 which is bent at a right angle to extend over the corner of the cover 4 of a box and to which it is firmly secured by a substantial fastening. The hasp 2 extends in front of the body 5 of the box and cooperates with the cam lever to fasten the cover 4 and draw the same close upon the box to insure the formation of a close joint.

The cam lever comprises a circular head 6, a finger piece 7 and a pivot stud S, the latter having an eccentric arrangement with reference to the head 6, whereby the latter forms in effect a cam when turning the lever upon the pivot stud 8. The keyhole slot 1 of the hasp is of a size to admit of the cam lever as a whole passing therethrough and the enlarged rounded end portion of the slot conforms to the head 6 of the cam lever to receive the same, the latter having a limited play to obviate binding and permit the lever being given a half turn when passed through the keyhole slot.

The pivot stud 8 projects from the rear of the circular or cam head 6, whereas the finger piece 7 extends from the front side of said cam head to clear the hasp after pass ing through the slot 1 thereof.

The cam lever is pivoted to a plate 9 which is securely fastened to the box, said plate having an opening 10 through which the pivot stud 8 passes, the projecting end of said pivot stud being upset or riveted to retain the cam lever in place. The plate 9 provides a substantial bearing for the cam lever and enables the latter to be firmly attached to the body of the box 01' other part to which the fastener may be applied.

When the parts are assembled, the hasp 2 overlaps the plate 9 and the narrow portion of the keyhole slot points upward, hence the finger piece of the cam lever ward by a cam action of the head 6 upon rounded portion of the keyhole slot.

the lower is in the position shown in Fig. 1, the finger piece overlaps the lower portion of the hasp and prevents outward displacement thereof and the upward strain being equal upon both sides of the cam lever the same maintains a pendent position and may be further secured by passing a wire through openings 11 and 12, the former being transversely of the finger piece and the latter extending through the lower portion of the hasp and arranged at each side of said finger piece. As

shown in Fig. 2, the lower ends of the finger piece and hasp project below the cleat extending lengthwise of the box at the upper end thereof.

When the lever Having thus described the invention, what is claimed as new is:

1. A fastener comprising a hasp having a keyhole slot, and a cam lever, the latter adapted to pass through the slot of the hasp and consisting of a finger piece, a circular piece at the head of the finger piece, and a pivot stud projected eccentrically from said circular head and serving as a support and connecting means for the lever.

2. A fastener comprising a hasp having a keyhole slot, a plate and a cam lever adapted to pass through the keyhole slot of the hasp and comprising a circular head, a finger piece, and a stud projected eccentrically from the said head and pivotally connecting the cam lever to the afore said plate.

In testimony whereof I aflfix my signature in presence of two witnesses.

EDWIN F. HULBERT.

Witnesses:

LEWIS C. Bnoous, F. H. NEWMAN. 

